HSK V6
Correct

同行

/ tóngháng / 
Strokes

Definition

person of the same profession/of the same trade, occupation or industry

Example

As a Verb

engage in the same trade/occupation

1
Tāliǎ
他俩
tóngháng
同行
  
,
dōu
都
shì
是
xué
学
yī
医
de
的
  
。

Both of them are of the same profession—medicine.

As a Noun

people of the same trade/occupation

2
Zhège
这个
huàtí
话题
kěnéng
可能
zhīyǒu
只有
tóngháng
同行
cái
才
huì
会
gǎn
感
xìngqù
兴趣
  
。

This topic is only likely to be of interest to the trade.

3
Wǒ
我
zài
在
lùshang
路上
pèngdào
碰到
yī
一
gè
个
tóngháng
同行
  
,
liáo
聊
le
了
jī
几
gōu
句
  
。

On my way here, I ran into someone of my profession and chatted for a while.

4
Tāmen
他们
shì
是
tóngháng
同行
  
。

They are in the same profession.

5
Tóngháng
同行
shì
是
yuānjia
冤家
  
。

Two of a trade can never agree. / People of the same trade are enemies.